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Zeitronix ZT-3 wideband

I finally ordered my wideband yesterday(Friday). I decided to go with Zeitronix ZT-3. $280 shipped!! It is just for the afr. I thought about getting the ZT-2 which has a lot more read-outs (egt, rpm, tps, boost, a/f, etc.) But I really didn't want to spend $420 for a bunch of read-outs that I don't really need. It should be here Thursday. So HOPEFULLY I can install it after work on Thursday and MAYBE tinker with dsmLink at the track on Friday. The only thing that might slow me down is having to weld in a bung to my downpipe. So we will see.

I finally got sometime yesterday to run the main w/b cord through the firewall. I had to find an open area on the firewall to drill through without hitting any lines or hoses. It was a success on my first attempt! It was a pita though. It took me about 1.5hrs.

I installed my gauge in the dual gauge pod today. I have the gauge pod that straddles the steering wheel column. I have my aftermarket boost gauge next to my stock boost gauge and now I have my w/b gauge on the other side by the stock fuel gauge. This part was very easy. Took me about 15mins.

All I have left to do is: 1) weld a bung in for my w/b o2 sensor 2) wire in 3 wires to my ecu 3) START TUNING!

I called Zeintronix yesterday and they told me at least 16" away from the turbo. So about 6" pass my flex section. Works out pretty good b/c that's right in between my intake manifold and my firewall, which means I can install it at the 12 o'clock position (vertical).

Im just going to mark the spot on my dp, pull my dp off the car and run it up to a muffler shop and have them weld in the bung. Only thing that sucks is I am working late tomorrow and then I'm going out of town Friday after lunch and won't be back til Sunday evening. So I'll have to finish up the install sometime after work next week.

It should be pretty easy to wire it up to the ecu b/c it's only 3 wires. I'm wanting to SOLDER the wires to the ecu, that way I don't have to worry about them coming loose.

I am torn where to put the w/b sensor. Some people tell me to put it 16" to 20" away from the turbo. Others say it would be fine to just put it in the rear 02 sensor, which is about 3' from my turbo. I know you don't want to put the sensor "too close" to the turbo b/c the sensor will burn out faster than it should. I am just curious where everybody has their w/b sensor? And if they have had any issues with the placement (wrong readings, harder to tune, more accurate readings, etc.)?

If I place the sensor 16" to 20" from the turbo then I will have to have a bung welded onto the dp ($40ish). I don't want to waste time and money on going to a muffler shop to have a bung welded in if it's not necessary. Yet, I don't mind going the extra step on doing it right! What are yall's thoughts?

Last edited by PhatEclipseTtu3; 09-23-2012 at 05:40 PM.
Reason: misspelling

the rear O2 sensor location is 3 feet from the turbo, no danger of heat. On that exhaust, there isn't a flange between after the flex section and that rear O2 bung hole, correct? That's where I would put it, as I said in that PM.

Thanks to the mad scientist, Robin for tuning my car this morning. Today was PERFECT Turbo weather. Cloudy and Cold. I went from 11psi to 18psi. I can tell a BIG difference in performance after Robin tweaked my numbers.

The only issue we had was that my GReddy Profec B boost controller was acting funny and not really upping the boost. Luckily Robin let me borrow his Hallman manual boost controller and that fixed the problem. So now I'm pushin' 18-18.5psi.